Epidemic foci of hemorrhagic fever with renal syndrome in Shandong Province, China, based on patients, rodents and molecular epidemiology characteristics, 2012-2015

AbstractBackgroundHemorrhagic fever with renal syndrome (HFRS), an infectious disease caused by hantaviruses, is endemic in China and remains a serious public health problem. Historically, Shandong Province has had the largest HFRS burden in China. However, we do not have a comprehensive and clear understanding of the current epidemic foci of HFRS in Shandong Province.Methodology/Principal FindingsThe incidence and mortality rates were calculated, and a phylogenetic analysis was performed after laboratory testing of the virus in rodents. Spatial epidemiology analysis was applied to investigate the epidemic foci, including their sources. A total of 6,206 HFRS cases and 59 related deaths were reported in Shandong Province. The virus carriage rates of the rodents Rattus norvegicus, Apodemus agrarius and Mus musculus were 10.24%, 6.31% and 0.27%, respectively. The phylogenetic analysis indicated that two novel viruses isolated from R. norvegicus in Anqiu City and Qingzhou City were dissimilar to the other isolated strains, but closely related to strains previously isolated in northeastern China. Three epidemic foci were defined, two of which were derived from the Jining and Linyi epidemic foci, respectively, while the other was the residue of the Jining epidemic focus.Conclusions/SignificanceThe southeastern and central Shandong Province are current key HFRS epidemic foci dominated by A. agrarius and R. norvegicus, respectively. Our study could help local departments to strengthen prevention and control measures in key areas to reduce the hazards of HFRS.Author summaryHemorrhagic fever with renal syndrome (HFRS) is a global infectious disease, which is still a serious public health threat in China today. The reported HFRS cases in Shandong Province accounted for approximate one third of total cases in the whole country. HFRS is a zoonosis mainly caused by Hantaan virus (HTNV) and Seoul virus (SEOV), which natural rodent hosts are A. agrarius and R. norvegicus, respectively. To explore the current HFRS epidemic foci based on patients, rodents and molecular epidemiology characteristics in Shandong Province, we collected the records of HFRS cases from whole province and the rodents captured in 14 surveillance sites. We found that the epidemic situation of HFRS is quiet different in temporal and spatial distribution. Three epidemic foci were defined based on patients, rodents and molecular epidemiology characteristics. The situation of HFRS epidemic foci in Shandong Province was clear. Our study provides a reference for relevant departments to develop key prevention strategies.

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Increasing Recombinant Strains Emerged in Norovirus Outbreaks in Jiangsu, China: 2015–2018

Scientific Reports ◽

10.1038/s41598-019-56544-2 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 1

Author(s):

Jianguang Fu ◽

Changjun Bao ◽

Xiang Huo ◽

Jianli Hu ◽

Chao Shi ◽

...

Keyword(s):

Public Health ◽

Phylogenetic Analysis ◽

Primary Schools ◽

Point Mutations ◽

The Other ◽

Recombinant Strains ◽

Viral Rdrp ◽

Conformational Epitopes ◽

Orf2 Region ◽

Recombination Breakpoints

AbstractFrom January 2015 to December 2018, 213 norovirus outbreaks with 3,951 patients were reported in Jiangsu, China. Based on viral RdRp and VP1 genes, eight genotypes, GII.2[P16] (144, 67.6%), GII.3[P12] (21, 9.9%), GII.6[P7] (5, 2.3%), GII.14[P7] (4, 1.9%), GII.4 Sydney[P31] (3, 1.4%), GII.1[P33] (1, 0.5%), GII.2[P2] (3, 1.4%), and GII.17[P17] (16, 7.5%) were identified throughout the study period. These genotypes were further regrouped as GII.R (Recombinant) and GII.Non-R (Non-recombinant) strains. In this report we showed that GII.R strains were responsible for at least 178 (83.6%) of 213 norovirus-positive outbreaks with a peak in 2017 and 2018. Most norovirus outbreaks occurred in primary schools and 94 of 109 (86.2%) outbreaks in primary schools were caused by GII.R, while GII.Non-R and GII.NT (not typed) strains accounted for 6 (5.5%) and 9 (8.3%) norovirus outbreaks, respectively. The SimPlot analysis showed recombination breakpoints near the ORF1/2 junction for all six recombinant strains. The recombination breakpoints were detected at positions varying from nucleotides 5009 to 5111, localized in the ORF1 region for four strains (GII.2[P16], GII.3[P12], GII.6[P7], and GII.14[P7]) and in the ORF2 region for the other (GII.4 Sydney[P31] and GII.1[P33]). We identified four clusters, Cluster I through IV, in the GII.P7 RdRp gene by phylogenetic analysis and the GII.14[P7] variants reported here belonged to Cluster IV in the RdRp tree. The HBGA binding site of all known GII.14 strains remained conserved with several point mutations found in the predicted conformational epitopes. In conclusion, gastroenteritis outbreaks caused by noroviruses increased rapidly in the last years and these viruses were classified into eight genotypes. Emerging recombinant noroviral strains have become a major concern and challenge to public health.

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Molecular characterization of small and medium segments of Crimean-Congo hemorrhagic fever virus in Turkey

Future Virology ◽

10.2217/fvl-2020-0003 ◽

2020 ◽

Vol 15 (4) ◽

pp. 247-254

Author(s):

Murat Karamese ◽

Erkan Ozmen ◽

Hakan Aydin ◽

Mehmet Ozkan Timurkan ◽

Mesud Fakirullahoglu

Keyword(s):

Infectious Disease ◽

Phylogenetic Analysis ◽

Phylogenetic Tree ◽

Molecular Characterization ◽

Hemorrhagic Fever ◽

Fever Virus ◽

Crimean Congo Hemorrhagic Fever ◽

Hemorrhagic Fever Virus ◽

Relationship Of

Aim: The objective was to investigate the genotypic relationship of S and M segments in Crimean-Congo hemorrhagic fever virus (CCHFV) by phylogenetic analysis in 25 patients from seven endemic cities in Turkey. Materials & methods: A total of 25 samples from patients with CCHF were included between 2012 and 2015. Phylogenetic tree analyses were inferred using MEGA version-6.0 and distances were calculated by Kimura’s 2-parameter. Results: Phylogenetic analysis showed that all isolated viruses (n = 25) were in the predicted clades such as clade V- Europe-1 regarding both S and M segments of the CCHFV. Conclusion: Further epidemiological, molecular and phylogenic studies should be performed in both reservoir animals/vectors and humans to determine the incidence of tick-borne infectious disease and to help to develop vaccines for prevention of the disease.

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Isolation of Candidatus Bartonella rousetti and Other Bat-associated Bartonellae from Bats and Their Flies in Zambia

Pathogens ◽

10.3390/pathogens9060469 ◽

2020 ◽

Vol 9 (6) ◽

pp. 469

Author(s):

Yongjin Qiu ◽

Masahiro Kajihara ◽

Ryo Nakao ◽

Evans Mulenga ◽

Hayato Harima ◽

...

Keyword(s):

Public Health ◽

Phylogenetic Analysis ◽

The Other ◽

Fruit Bats ◽

Public Health Importance ◽

Insectivorous Bats ◽

The Public ◽

Bat Flies

Bat-associated bartonellae, including Bartonella mayotimonensis and Candidatus Bartonella rousetti, were recently identified as emerging and potential zoonotic agents, respectively. However, there is no report of bat-associated bartonellae in Zambia. Thus, we aimed to isolate and characterize Bartonella spp. from bats and bat flies captured in Zambia by culturing and PCR. Overall, Bartonella spp. were isolated from six out of 36 bats (16.7%), while Bartonella DNA was detected in nine out of 19 bat flies (47.3%). Subsequent characterization using a sequence of five different genes revealed that three isolates obtained from Egyptian fruit bats (Rousettus aegyptiacus) were Ca. B. rousetti. The isolates obtained from insectivorous bats (Macronycteris vittatus) were divided into two previously unclassified bat-associated bartonellae. A phylogenetic analysis of the six genotypes of Bartonella gltA sequences from nine pathogen-positive bat flies revealed that three genotypes belonged to the same clades as bat-associated bartonellae, including Ca. B. rousetti. The other three genotypes represented arthropod-associated bartonellae, which have previously been isolated only from ectoparasites. We demonstrated that Ca. B. rousetti is maintained between bats (R. aegyptiacus) and bat flies in Zambia. Continuous surveillance of Bartonella spp. in bats and serological surveys in humans in Africa are warranted to evaluate the public health importance of bat-associated bartonellae.

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ANALISIS FILOGENETIK DENGUE DI INDONESIA

INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY ◽

10.24293/ijcpml.v18i2.1009 ◽

2018 ◽

Vol 18 (2) ◽

pp. 111

Author(s):

Aryati Aryati

Keyword(s):

Immune Response ◽

Phylogenetic Analysis ◽

Molecular Epidemiology ◽

Dengue Hemorrhagic Fever ◽

Primary Infection ◽

Secondary Infection ◽

Hemorrhagic Fever ◽

Genotype I ◽

E Gene ◽

Response Profile

Molecular epidemiology is needed to solve the problem for endemic Dengue Hemorrhagic Fever in Indonesia.This research has been carried out consisting of 525 Dengue Hemorrhagic Fever sera, according to the WHO criteria.These sera were collected from 19 cities in Indonesia comprising the islands of Sumatera, Batam, Kalimantan, Sulawesi, Papua, Java,Bali and Lombok from 2003 until 2005. The immune response profile was as follows 57.14% (300/525) secondary infection, 12.57%(66/525) primary infection, 4.20% (22/525) equivocal and 26.09% (137/525) negative. From 192 PCR samples, 100 (52%) serawere positive, consisting of 65% DEN-2, 15% DEN-3, 12% DEN-4 and 8% DEN-1. Homology analysis showed nucleotide differences incapsid region DEN-2 serotypes, while DEN-3 serotypes were relatively consistent. Phylogenetic analysis using envelope (E) gene revealedthat the Cosmopolitan genotype from Gorontalo in 2005, is currently circulating locally, with the potential to cause a severe hemorrhagicdisease. Members of this genotype were closely related to viruses from Malaysia, Singapore, Thailand, Philippines and Australia. Theisolate from Jakarta, 2003 showed DEN-3 with I genotype. This genotype was similar to the isolate from Indonesia 1978, 1985, andalso from Thailand 1992, Philippines 1997, and Fiji 1992. These results showed Cosmopolitan genotype from DEN-2 was similar toSoutheast Asia countries. It was also revealed that genotype-I from DEN-3 showed no change over the years since 1978.

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Molecular epidemiology and clinical characteristics of herpangina children in Beijing, China: a surveillance study

PeerJ ◽

10.7717/peerj.9991 ◽

2020 ◽

Vol 8 ◽

pp. e9991

Author(s):

Tian-Shuo Zhao ◽

Juan Du ◽

Hong-Jun Li ◽

Yan Cui ◽

Yaqiong Liu ◽

...

Keyword(s):

Infectious Disease ◽

Phylogenetic Analysis ◽

Molecular Epidemiology ◽

Disease Control ◽

Clinical Characteristics ◽

Reporting System ◽

Clinical Manifestations ◽

Control And Prevention ◽

Predominant Pathogen ◽

Beijing China

Background Herpangina is a highly infectious disease, which is usually prevalent in preschool children. Methods This study analyzed the clinical and pathogenic characteristics of herpangina children to demonstrate the epidemiology of herpangina. Clinical manifestations, laboratory indicators and pharyngeal swabs were collected from children with herpangina who were monitored by Tongzhou Center for Disease Control and Prevention in Beijing, 2008. Utilizing pharyngeal swabs, virus extraction and amplification were performed for nucleotide identification and sequencing. The phylogenetic analysis was conducted based on all sequences amplified in this study and strains retrieved from GenBank. Results Among 190 children with herpangina, 69.0% (131/190) were positive for enterovirus. Eight genotypes were identified, mainly including CV-A6 (39/131), CV-A4 (25/131), CV-A10 (24/131). The phylogenetic analysis showed one CV-A6 strain of Tongzhou was imported from Japan. CV-A10 strains were clustered into five groups (A-E). The dominant cluster of CV-A10 was Group E6 between 2009 and 2013, and converted to Group E5 after 2013. CV-A6 was the predominant pathogen causing herpangina in Tongzhou in 2018, followed by CV-A4 and CV-A10. Conclusions The circulation of coxsackievirus had spatiotemporal cluster. In controlling the transmission of herpangina, the surveillance and reporting system should be enhanced.

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Difusi dan Pola Spasial Sebaran Penyakit Demam Berdarah Dengue (DBD) Di Kota Bandar Lampung

KESMARS Jurnal Kesehatan Masyarakat Manajemen dan Administrasi Rumah Sakit ◽

10.31539/kesmars.v1i1.192 ◽

2018 ◽

Vol 1 (1) ◽

pp. 87-95

Author(s):

Nurul Qamila ◽

Agel Vidian Krama

Keyword(s):

Public Health ◽

Spatial Analysis ◽

Aedes Aegypti ◽

Dengue Virus ◽

Spatial Pattern ◽

Dengue Hemorrhagic Fever ◽

Health Problem ◽

Public Health Problem ◽

Hemorrhagic Fever ◽

Descriptive Method

Dengue hemorrhagic fever (DHF) is a contagious disease caused by the dengue virus and is transmitted by the mosquito Aedes aegypti (Aa.aegypti). The population is still a public health problem that increases the number of sufferers and also widespread, with population and education. This study aims to reveal the spatial pattern and distribution of Dengue Hemorrhagic Fever (DHF) with the spatial pattern and the spread of Dengue Hemorrhagic Fever (DHF) can result in different locations of these allegations. From the map that can be used for the prevention of Dengue Hemorrhagic Fever (DBD) in Bandar Lampung City. This study aims to reveal the spatial pattern and distribution of Dengue Hemorrhagic Fever (DHF) with the descriptive method and spatial pattern of Dengue Hemorrhagic Fever (DHF) can result in different locations of these allegations. From the map that can be used for the prevention of Dengue Hemorrhagic Fever (DBD) in Bandar Lampung City. Keywords: DHF, Spatial Analysis

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A brief review of diagnosis of small ruminants brucellosis

Current Medicinal Chemistry ◽

10.2174/0929867328666201231121226 ◽

2020 ◽

Vol 28 ◽

Author(s):

Jingjing Ren ◽

Qisheng Peng

Keyword(s):

Public Health ◽

Infectious Disease ◽

Economic Impact ◽

False Positive ◽

Brucella Melitensis ◽

Small Ruminants ◽

Animal Husbandry ◽

Detection Methods ◽

Immunological Tests

: Brucellosis caused by bacteria of the genus of Brucella remains a major zoonosis in the widely world, which is an infectious disease with a severe economic impact on animal husbandry and public health. The genus of Brucella includes ten species and the most prevalent is Brucella melitensis. The diagnosis of Brucella melitensis ruminant brucellosis is based on bacteriological and immunological tests. The use of vaccines and the false-positive serological reactions (FPSR) caused by other cross-reacting bacteria represent the immunological contexts. This complex context results in the development of the large number of diagnosis of Brucella melitensis brucellosis. The aim of this article is to briefly review the detection methods and compare the superiorities of different tests.

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Trends in the incidence and mortality of oral cancer in Nevada (Preprint)

10.2196/preprints.19675 ◽

2020 ◽

Author(s):

Kevin Foote ◽

Karl Kingsley

Keyword(s):

Public Health ◽

Oral Cancer ◽

Cancer Incidence ◽

Cancer Control ◽

Cancer Registries ◽

Public Health Research ◽

Chi Square ◽

Incidence And Mortality ◽

The Us ◽

Chi Square Analysis

BACKGROUND Reviews of national and state-specific cancer registries have revealed differences in rates of oral cancer incidence and mortality that have implications for public health research and policy. Many significant associations between head and neck (oral) cancers and major risk factors, such as cigarette usage, may be influenced by public health policy such as smoking restrictions and bans – including the Nevada Clean Indoor Act of 2006 (and subsequent modification in 2011). OBJECTIVE Although evaluation of general and regional advances in public policy have been previously evaluated, no recent studies have focused specifically on the changes to the epidemiology of oral cancer incidence and mortality in Nevada. METHODS Cancer incidence and mortality rate data were obtained from the National Cancer Institute (NCI) Division of Cancer Control and Population Sciences (DCCPS) Surveillance, Epidemiology and End Results (SEER) program. Most recently available rate changes in cancer incidence and mortality for Nevada included the years 2012 – 2016 and are age-adjusted to the year 2000 standard US population. Comparisons of any differences between Nevada and the overall US population were evaluated using Chi square analysis. RESULTS This analysis revealed that the overall rates of incidence and mortality from oral cancer in Nevada differs from that observed in the overall US population. For example, although the incidence of oral cancer among Caucasians is increasing in Nevada and the US overall, it is increasing at nearly twice that rate in Nevada, P=0.0002. In addition, although oral cancer incidence among Minorities in the US is declining, it is increasing in Nevada , P=0.0001. Analysis of reported mortality causes revealed that mortality from oral cancer increased in the US overall but declined in Nevada during the same period (2012-2016). More specifically, mortality among both Males and Females in the US is increasing, but is declining in Nevada, P=0.0027. CONCLUSIONS Analysis of the epidemiologic data from Nevada compared with the overall US revealed significant differences in rates of oral cancer incidence and mortality. More specifically, oral cancer incidence increased in Nevada between 2012-2016 among all groups analyzed (Males, Females, White, Minority), while decreases were observed nationally among Females and Minorities. Although mortality in Nevada decreased over this same time period (in contrast to the national trends), the lag time between diagnosis (incidence) and mortality suggests that these trends will change in the near future. CLINICALTRIAL Not applicable

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Occupational and Environmental Health

10.1093/oso/9780190662677.001.0001 ◽

2017 ◽

Cited By ~ 2

Keyword(s):

Public Health ◽

Occupational Health ◽

Environmental Health ◽

Health And Safety ◽

Practical Experience ◽

Global Perspective ◽

Clear Understanding ◽

Practical Case ◽

Environmental Sciences ◽

Wide Range

This thoroughly updated seventh edition is a comprehensive, clearly written, and practical textbook that includes information on both occupational health and environmental health, providing the necessary foundation for recognizing and preventing work-related and environmentally induced diseases and injuries. National and international experts share their knowledge and practical experience in addressing a wide range of issues and evolving challenges in their fields. A multidisciplinary approach makes this an ideal textbook for students and practitioners in public health, occupational and environmental medicine, occupational health nursing, epidemiology, toxicology, occupational and environmental hygiene, safety, ergonomics, environmental sciences, and other fields. Comprehensive coverage provides a clear understanding of occupational and environmental health and its relationships to public health, environmental sciences, and government policy. Practical case studies demonstrate how to apply the basic principles of occupational and environmental health to real-world challenges. Numerous tables, graphs, and photographs reinforce key concepts. Annotated Further Reading sections at the end of chapters provide avenues for obtaining further infomation. This new edition of the book is thoroughly updated and also contains new chapters on climate change, children’s environmental health, liver disorders, kidney disorders, and a global perspective on occupational health and safety.

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Delivery of the National Child Measurement Programme in England

Public Health Nutrition ◽

10.1017/s1368980020004991 ◽

2020 ◽

pp. 1-21

Author(s):

Martin Čadek ◽

Stuart W. Flint ◽

Ralph Tench

Keyword(s):

Public Health ◽

Local Government ◽

Best Practice ◽

Online Survey ◽

The Other ◽

Service Availability ◽

Healthy Weight ◽

Weight Category ◽

Convenience Sampling

Abstract Objective: The National Child Measurement Programme (NCMP) is a mandatory initiative delivered in England to children in reception and year 6. To date, no research has explored the methods used to deliver the NCMP by Local Government Authorities (LGA) across England. Design: An online survey was administered between February 2018 and May 2018 to explore the delivery of the NCMP across the 152 LGAs in England and disseminated using non-probability convenience sampling. Setting: LGAs received an anonymous link to the survey. Participants: A total of 92 LGAs participated in the survey. Results: Most LGAs who responded provide result feedback (86%), a proactive follow-up (71%) and referrals to services (80%). Additionally, 65% of the authorities tailor Public Health England specimen result letters to suit their needs, and 84% provide attachments alongside. Out of 71% of LGAs who provide proactive follow-up, 19 (29%) provide the proactive follow-up only to upper weight categories, and only 4 (6 %) include Healthy Weight category with other categories in proactive follow-up. Regarding the service availability for children, out of 80% of LGAs who indicated that services are available, 32 (43%) targeted solely upper weight categories while the other 42 (57%) offered services across all weight categories. Finally, most LGAs (88%) commission providers to manage various parts of the NCMP. Conclusions: The results show that LGAs in England localise the NCMP. Further guidance regarding standards of best practice would help LGAs to find the most suitable localisation out of various options that exist across other LGAs.

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